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A-Z Animals is the world’s most trusted online animal encyclopedia. If you want cute animals, wild animals, weird animals or are looking for comprehensive pet guides for dogs and cats, we’ve got you covered!
We believe that if people know more about the world’s creatures they will better care for them. Thats why we add new animals for you to discover – each and every day! Learn about any animal using the search box below:
The official mammal class is Mammalia. Animals that are considered mammals include warm-blooded vertebrates that have hair or fur and whose babies drink milk. Unlike other animal types like birds and insects, all mammal babies drink milk that comes from their mother’s bodies. This is one of the key ways to know if an animal is a mammal.
Lizards, dinosaurs, crocodiles, turtles, and snakes – all belong to that ancient and stout class of animals known as the reptiles. This is a diverse group with more than 10,000 different species and a huge representation in the fossil record. Once the dominant land vertebrates on the planet, reptiles still occupy just about every single ecosystem outside of the extreme north and south.
Fish are aquatic vertebrates. They usually have gills, paired fins, a long body covered with scales, and tend to be cold-blooded. "Fish" is a term used to refer to lampreys, sharks, coelacanths and ray-finned fishes, but is not a taxonomic group, which is a clade or group containing a common ancestor and all its descendants.
Birds, members of the class Aves, include more than 10,400 living species. Their feathers distinguish them from all other classes of animal; no other animals on earth have them. If you see an animal with feathers, it’s undoubtedly a bird. Like mammals, birds are warm-blooded vertebrates with four-chambered hearts. However, they are more closely related to reptiles and are believed to have evolved from dinosaurs.
The official class of amphibians is Amphibia. To have the classification of an amphibian, an animal must be a vertebrate, require water to survive, be cold-blooded, and spend time both on land and in water. Though other animals only live on land or in the water, amphibians have the unique ability to thrive equally in both. Amphibians cover over 6,000 different species across the globe, but about 90% are frogs.
The definition of an invertebrate is any animal that does not have a backbone or vertebral column. The most prolific and easily recognizable members of the invertebrate family are insects. It’s estimated that upwards of 30 million individual species of invertebrates may exist accounting for between 90-95 percent of all organisms on the planet.
All insects are part of the taxonomical phylum Arthropoda, and they are collectively referred to as arthropods. It is common to see this name misspelled as “anthropod,” but this is not the correct term. They can be found in nearly every environment on the planet, and they currently account for over half of all known living organisms in the world. They have undergone many cycles of evolution depending on the resources available to them.
The AZ Animals team has spent years working with and studying the latest research on what products are best for our pets and yours, and we’re excited to share our expert pet product recommendations with you.
Dinosaurs still alive today? If you’ve seen a cassowary foot you might think so! Cassowaries are not dinosaurs, but they are one of the closest living relatives. Let’s dig into how cassowaries and dinosaurs are alike! Are Cassowaries Dinosaurs? Take a look at the picture in the tweet embedded below and blurt out the first […] Read More
A new study out of Germany highlights cows’ cognitive abilities by training them to use bathroom stalls. The study explains the possible impact potty-trained cows could have on emission rates, especially for gases like ammonia – one of the most concentrated gases in cow urine. In this study, calves learned to urinate in a contained, […] Read More
The cassowary is one of the closest living relatives to dinosaurs, and it looks the part. With prehistoric-looking feet and a claw that can reach five inches in length, cassowaries are imposing animals. But how dangerous are they? We’ll dig into past cassowary attacks and decide whether this bird lives up to its title of […] Read More
It’s not every day you can say an animal’s foot became the talk of the Internet. But that’s exactly what happened in January 2019. A tweet (embedded below) from a Ph D student showed a striking picture of a cassowary foot. Just how big is this foot and how deadly is it? Let’s dive into […] Read More
Ligers, tigons, and bears, oh my! People have flocked to large cat hybrids for years due to their novelty, size, and unique appearance. Despite widespread interest, few people know the differences between a liger vs tigon. These large cat hybrids result from the mating between a tiger and lion, with each belonging to a different […] Read More
Armyworms are pests that can destroy any farm field, pasture, yard, or garden they come across with their hunger. True to their name, they march into vegetation. If you think you have armyworms, it’s necessary to know how to control them. But not all pests are the same and not all methods work on every […] Read More
When an animal hibernates, it goes into a state of sleep or minimal activity. During this period, its metabolism slows down and it relies on stored energy reserves in its body and possibly stashed food. Hibernation allows many animals to survive winters, which are dark and cold, without having to migrate elsewhere or search for […] Read More
Cassowaries live in three locations: Australia, Indonesian islands, and the island of New Guinea. Yet, each of those locations covers a significant amount of land! Let’s examine the three species of cassowaries and the habitats and locations they can be found in! Where Do Cassowaries Live: Their Habitats The first thing to know about cassowaries […] Read More
Cassowaries are one of the most interesting looking animals on earth. They have a crest on their head made out of the same material as rhino horns, feet with dagger-like nails that look like dinosaur feet, and a unique bright blue head. Given their appearance, its easy to see why cassowaries are known as the […] Read More
Everyone knows ostriches are speedsters, but are they the fastest bird? Another large, flightless bird is the cassowary. Unlike ostriches, which live in wide-open savannas and deserts, cassowaries live in dense forests less ideal for sprinting. Yet, the speed and athleticism of cassowaries might surprise you. Let’s dig into the speed of cassowaries. Just how […] Read More